PREFACE• world maps identify geographic regions of visibility for each phase of every
eclipse• visibility maps are based of the most current determination of the historical values
of∆ T• estimates of eclipse visibility map accuracy based on the uncertainty in the value of∆ T
(ie, standard error in∆ T) A primary goal of this work is to assist historians and archeologists
in the identification and dating of eclipses found in references and records from antiquity. For
example, an ancient mechanical calculator known as the Antikythera mechanism was …